I would have to agree with lovefish(I didnt see the post before I posted) aquaclears are good filter in that they have sponges that you can just rinse off with water(I use old tank water to get the junk out so that the cholrine in the water doesnt kill the bacteria) I have had the same sponges in for over 2 years and still working good. I dont want to say you have to go out and spend more money on a filter if you dont want to but if you can afford it, it wouldnt hurt.